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DOI | 10.1002/joc.5132 |
Space-time variability of extreme rainfall in the River Nile basin | |
Onyutha, Charles1,2; Willems, Patrick1 | |
2017-11-30 | |
发表期刊 | INTERNATIONAL JOURNAL OF CLIMATOLOGY
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ISSN | 0899-8418 |
EISSN | 1097-0088 |
出版年 | 2017 |
卷号 | 37期号:14 |
文章类型 | Article |
语种 | 英语 |
国家 | Belgium; Uganda |
英文摘要 | In this study, spatio-temporal variability in daily rainfall extremes based on 0.5 degrees x0.5 degrees gridded data over the Nile basin was analysed using the quantile perturbation method. The co-occurrence of the extreme rainfall variability with the variation in the large-scale ocean-atmosphere conditions was also investigated. Based on a 15-year moving window, it was found that the extreme rainfall shows oscillatory behaviour over multi-decadal time scales. The latitudinal difference in the multi-decadal extreme rainfall oscillations divides the study area into the Northern, Central, and Southern regions. The variability in the extreme rainfall of the Central region is dominantly driven by the variation in the sea surface temperatures of the Atlantic and Pacific Oceans. For the Southern region, extreme rainfall variability is linked to the anomalies in the sea level pressure of the North Atlantic Ocean and the variation in the sea surface temperature of the Indian Ocean. The variation in the extreme rainfall of the Northern region corresponds to the anomalies in sea surface temperatures of the Indian and Atlantic Oceans as well as from the Pacific Ocean. |
英文关键词 | climate variability climate indices rainfall variability River Nile basin quantile perturbation method rainfall extremes |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000414322800012 |
WOS关键词 | NINO SOUTHERN-OSCILLATION ; INTERANNUAL VARIABILITY ; TEMPORAL VARIABILITY ; STATISTICAL-ANALYSES ; CLIMATE ; PRECIPITATION |
WOS类目 | Meteorology & Atmospheric Sciences |
WOS研究方向 | Meteorology & Atmospheric Sciences |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/37164 |
专题 | 气候变化 |
作者单位 | 1.Katholieke Univ Leuven, Hydraul Lab, Kasteelpk Arenberg 40, B-3001 Leuven, Belgium; 2.Muni Univ, Fac Technosci, Arua, Uganda |
推荐引用方式 GB/T 7714 | Onyutha, Charles,Willems, Patrick. Space-time variability of extreme rainfall in the River Nile basin[J]. INTERNATIONAL JOURNAL OF CLIMATOLOGY,2017,37(14). |
APA | Onyutha, Charles,&Willems, Patrick.(2017).Space-time variability of extreme rainfall in the River Nile basin.INTERNATIONAL JOURNAL OF CLIMATOLOGY,37(14). |
MLA | Onyutha, Charles,et al."Space-time variability of extreme rainfall in the River Nile basin".INTERNATIONAL JOURNAL OF CLIMATOLOGY 37.14(2017). |
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